Saw-cylinder for cotton-gins and cotton-seed linters.



H. W. LIGONQ SAW CYLINDER FOR COTTON GINS AND GOTTON SEED LINTERS.

APPLICATION FILED APR. 29, 1908.

Patented 'Nov. 3, 190.8.

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HARRY W. LIGON, OF ATLANTA, GEORGIA, ASSIG-NOR TO CONTINENTAL GIN COMPANY, OF BIRMINGHAM, ALABAMA, A CORPORATION OF DELAWARE.

SAW-CYLINDER FOR COTTON-GINS AND COTTON-SEED LINTERS.

Application filed. April 29, 1908.

To all whom it may concern:

Be it known that I, HARRY WV. LIGON, a citizen of the United States, residin at Atlanta, in the county of Fulton and tate of Georgia, have invented certain new and use ful Improvements in Saw-Cylinders for Cotton-Grins and Cotton-Seed Linters; and I do hereby declare the following to be a full, clear, and exact description of the same, ref erence being had to the accompanying drawings, forming a part of this specification, and to the figures and letters of reference marked thereon.

One of the objects of the present invention is to improve the construction of saw cylinders such as are particularly adapted for use in cotton gins, cotton seed lmters, etc., whereby the saws will be held more firmly and with less liability to buckle.

Another object of the invention is to provide a relatively light and cheap metal spacer with which the clamping pressure for securing the saws together will be well distributed over the saw surface within the tooth line and without increasing the area of contact surface between the saws and spacers.

In the accompanying drawings: Figure 1 is a perspective view of a saw cylinder embodying the present im rovements. Fig. 2 is a face view of one of t e spacers or space blocks. Fig. 3 is an edge View of the same. Fig. 4 is a sectional view showing the preferred means for uniting the sinuous rim and center disk where the spacer is made of sheetmetal. Figs. 5 and 6 are detail sections showing different means for holding the rim in position on the center disk.

Like letters of reference in the several fig ures indicate the same parts in the several views.

In the accompanying drawings the shaft on which the saws are mounted and which forms the axis of the cylinder, is indicated by the letter A. The saws O are assembled on the shaft with spacers or space blocks interposed between them, the saws and blocks being then clamped together by nuts D on each end of the shaft. The peripheries or rims of the spacers are alone adapted to contact with the saws and the line of contact is usually a short distance within the tooth line of the saws, or a sufficient distance within the tooth line to permit the saws to project through the cooperating ribs of the gin or linter.

In the preferred construction, the spacers Specification of Letters Patent.

Patented Nov. 3, 1908.

Serial No. 429,829.

may well be made up of a strip of sheet metal suitably corrugated and with its ends united by a fold or seam 0 the extreme ends being I preferably reduced in width to guard against any possible irregularity in the contact surfaces or the point of union. The rim may be held in position on the outer edge of the disk by projections 0 passing through apertures in the rim and having their ends turned down, as well illustrated in Fig. 4, or pr0jections 0 may be struck from the rim and bent inwardly to embrace the sides of the disk as in Fig. 5, or some of the corrugations may be slotted as at 0 Fig. 6, to receive the edge of the disk The depth of the. corrugations will, of course, determine the boundaries of the radial area within Which contact will be made with the saws. While the boundaries of this area may be quite widely separated, as by making deep corrugations, the actual area of contact is comparatively small, and hence the saws will adjust themselves more readily, but at the same time there is little or no liability of the clamping pressure being exerted on opposite sides of a saw, in such relation as to buckle the saw or to cause it to run out of true.

Inasmuch as the sinuous periphery alone contacts with the saws and the center disk is relatively thin, the spacers will adapt themselves to the clamping pressure and insure a uniform clamping action throughout all of the saws at points within the tooth line and well removed from the shaft itself.

The spacers are of simple construction, do not increase the weight of the cylinder, and by using strips of uniform width may be made to accurately and uniformly space the saws. The curved form of the corrugations prevents the lint or fiber from becoming entangled between the saws, and in fact the corrugations exert rather a repellent action upon loose fiber, due to the air currents set up by the rotation of the cylinder, as well as by reason of the inclined faces of the corrugations themselves.

Obviously any desired means for connecting the center disk and rim may be employed without departing from the invention and while the means shown are preferred and may be used either separately or together, I do not wish to be restricted thereto save where particularly specified in the claims.

Having thus described the invention, what I claim as new and desire to secure by Letters Patent, is:

1. A saw cylinder for ginning machinery etc, embodying a multiplicity of saws, means for clamping said saws together, and spacers interposed between the saws and having sinuous peripheral rims.

2. A saw cylinder for ginning machinery, embodying a multiplicity of saws, means for clamping said saws together, and spacers interposed between the saws and having a central annular disk and a sinuous peripheral rim adapted to contact with the saws.

3. A spacer for saw cylinders, of ginning machinery embodying a center support and a sinuous rim, substantially as described.

4. A spacer for saw cylinders of ginning machinery, embodying a central disk and a corrugated rim, the corrugations extending parallel with the axis of the spacer, substantially as described.

5. A spacer for saw cylinders of ginning machinery, having a central sheet metal disk and a peripheral corrugated sheet-metal rim, the corrugations of the rim extending parallel with the axis of the spacer, and the ends of the corrugations constituting the faces for contact with the saws.

6. A spacer for saw cylinders of ginning machinery, embodying a central sheet-metal disk having-a central aperture for the saw shaft, a transversely arranged sheet-metal rim mounted on the periphery of said disk and projections for holding the rim and disk in proper relative position.

7. A spacer for saw cylinders of ginnin machinery embodying a central sheet meta disk, a corrugated peripheral sheet metal rim and connections between the inner crests of the corrugations and edge of the disk.

HARRY W. LIGON.

Witnesses:

S. P. GENTRY, W. W. RUsHToN 

